Fuel Pump Calculator

Use this calculator to determine the best size fuel pump to support your injectors.

# of Injectors
Injector flow Rate*
Base Fuel Pressure
Boost Pressure
Fuel System Type
Required Fuel Pump Flow Rate & Pressure
Flow (LPH)
Pressure (PSI)
*Injector flow rate must represent the flow rate at your base pressure. If base pressure is not 3 bar (43.5psi) please use the flow vs pressure calculator to calculate injector flow rate at base pressure.

DW fuel pump "call sizes" are rated at 40psi. Please refer to the flow vs pressure charts in the links below to choose the best DW fuel pump for your application.


415 E Hill Street
Oklahoma City, OK 73105
Phone: 1.405.217.0701
Toll-free: 1.800.419.6023
Fax: 1.405.217.0700